Noise-induced sudden deafness from discotheque sound. A case report

Abstract

The patient was a 21-year-old man who acquired unilateral deafness while he was exposed to extremely loud sound of discotheque for about 4 hours. His hearing type was of a dish, with a mean hearing loss of slightly over 50 dB in the middle frequencies. He was positive for recruitment phenomenon. No abnormal temporary threshold tone decay could be observed. He received treatment for approximately 2 months with slight improvement in hearing. Only 10 dB was elevated in frequencies of 500 Hz or below during treatment. © 1977, The Oto-Rhino-Laryngological Society of Japan, Inc. All rights reserved.